STA-BIL® 360° Oil Stabilizer uses proprietary vapor corrosion control chemistry originally developed for the military to prevent corrosion throughout the engine. It deposits a microscopic coating of corrosion fighter on metal surfaces in the crankcase, engine block, cylinder heads, virtually anywhere except the combustion chamber (where STA-BIL® 360° Protection Ethanol Treatment takes over). This protection works whether the engine is running or not. Traditional thick, tacky additives stay in the oil pan and don’t work after they drip off the part. 360° works 24/7 for up to 12 months protecting your engine over long storage periods. 360° Oil Stabilizer contains ThinKote™ Technology, which leaves a thin durable coat of protection on engine parts ensuring lubrication is available in those crucial first seconds after starting the engine. STA-BIL 360° Oil Stabilizer also helps prevent water from contaminating your oil. It keeps water well mixed in the oil helping prevent bearing damage and sludge buildup. Of course, this product also prevents thermal breakdown, reduces friction & wear, and reduces sludge formation as well, it just does it better than the leading brand.